diff --git a/handbook/computing/manual.html b/handbook/computing/manual.html
index 925ea9973..417bea0c2 100644
--- a/handbook/computing/manual.html
+++ b/handbook/computing/manual.html
@@ -10,7 +10,7 @@
 <h1>Expo Data Maintenance Manual</h1>
 
 
-<h2><a id="manual">Oh No! Something has changed.</a></h2>
+<h2 id="manual">Oh No! Something has changed.</h2>
 <p>It happens all the time, 
 <ul>
 <li>somebody annoyingly links your new entrance to an existing cave
@@ -21,6 +21,11 @@
 <p>so now you need to fix things.
 
 <p>Check the <a href="../survey/status.html">current status</a> of the expo data first.
+  
+  <h2>Changing Cave Names to Kataster Numbers</h2>
+<p>After a cave is surveyed, documented and reported to the Austrians, they issue a 'kataster number'. 
+  So now the data needs to be renamed to match the new name, e.g. Homecoming had to be renamed from <b>2018-dm-07</b> to <b>1626-356</b>.
+  <p>The recommended procedure is documented at <a href="newkataster.html">new kataster number process</a>
 
 <h2>Do not despair - no nerd needed</h2>
 <p>OK, <em>probably</em> what you need is written up somewhere in the 7-stage